Setting-up mechanism



Dec. 8, 1936. M. BURGER ySETTINGyr---UP MECHANISM i 2 Sheets-*Sheet 2 0 5 L5 M L Original Filed May 29, 1933 Patented Dec. s, 1936 UNITED i sTATEs Martin Burger, Morris, Ill., assignor to lSelf- Locking Carton Co., Chicago, lll., a corporation of Illinois Application May es, 193s, serial No. 673,457

`Renewed August 14, 1935 The present invention relates to the setting up or erection of cellular cartons, and has particular reference .to an improved setting-up device for the erection of cartons of the type described in my co4 V penlng application, Serial No. 673,458, filed May 29, 3

'I'he principal object of the invention is to provide an apparatus for setting up cellular egg cartons4 of the typel described in my aforesaid co'- pending'application, which cartons are provided with cross partitions hinged to their front and 'rear walls, longitudinal partition-forming sections adapted to engage the cross partitions when the latter arein vertical position and preferably openings in the bottoni section of the carton which permit the operator to distend' the walls of the carton and to bring the longitudinal partition sections together by engagement of the carton.

through the openings and pressing the material of the carton together.

This and other objects will b'e evident from a consideration of the following illustrative and explanative description and by reference to the accompanying drawings, in which Fig. l isa side view of a setting-up mechanism constructed in accordance with my invention;

Fig. 2 is a plan view of the structure;

Fig. 3 is a cross section taken along lines 3 3 of Fig. 1; A

3o Fig. 4 is a. fragmentary longitudinal section taken along line 4-4 of Fig. 2 and shows a carton about to be erected upon the structure;

. Fig. 5 is similar to Fig. 4 and shows the second tage in the erection of a carton upon the strucllle;

Fig. 6 is a similar View to Fig. 4 and shows the third stage in the erection of a. carton upon the structure;

Fig. 7 is a plan view of a carton adapted to be set up on the device, shown in collapsed or iiattened condition;

Flg. 8 is a sectional view of the carton shown in Fig. '7

Fig. 9 is an end view oi' the setting-up device showing a carton about to be erected;

the second stage in the erection of the carton; and Fig. l1 is a view similar to Fig. 94 and showing the third and nal stage in the erection'of the carton.

'I'he carton which is particularly adapted to be erected on the device described is formed by suitably cutting, scoring and folding a blank to pro- .vide a cover locking strip I0, a cover Il, a rear wall I2, a rear bottom section I3. a rear longitu- -nal partition-receiving opening 32.

Fig. 10 isa similar view to Fig. 9 and discloses dinal partition section I8, a front longitudinal section I5, a front bottom section I6, a front-wall 1, cross partitions |4hinged to the topvof the front wall by means of triangular webs I9 and an attaching strip 20 glued to the rear wall and 5 hinged to the cross partition by means of triangular webs 2 I 'Ihe elements specified are separated by suitable score lines running longitudinally of f the carton.` In the bottom sections and adjacent the score line which separates the bottom sections l0 from the longitudinal partition sections are provided openings 22 which serve as nger holds whereby the longitudinal partition sections may be pressed together as shown, for example, in Fig.

9. 'I'he longitudinal partition sections are prol5 vided with cross partition-receiving openings. 23,

at the bottom of which are partition-engaging slots 24. Hooks 25 extend into the openings 23 lover the slots 24. In collapsed condition the cross partitions I8 of the carton extend in substantially horizontal relation. f Adjacent the front cross partition-receiving opening 23 is providedv an upwardly extending hook 26 which prevents outward movement of the front cross partition when the latter is inserted in the slot 24 and beneath the hook 25. f

To a base or frame portion 30 of the setting-up device shown 4in Fig. 1 are mounted two longitudinally extending rows of cross partition-engagingl blocks 3|, the blocks in one row Abeing in parallel 3o position with respect to the blocks in the other l row.- Between the two rows is a longitudinal partition-receiving opening 32 which extends downwardly below the lower portion of the blocks 3|, as shown in Fig. 3. The adjacent blocks in each 35 row are transversely spaced to provide openings for receipt of crosspartitions. Adjacent one end of the base member 30 are positioned two vertical plates 33 mounted on each side of the longitudi- Two downwardly extending longitudinal partition-receiving members 34 are secured to the plates 33 and these members serve to receive the longitudinal partition of a carton when in the position shown in Fig. 9, whereby the longitudinal partition is guid- 4-5 ed into the partition-receiving opening 32.

The blocks 3| have substantially vertical face portions 35 on one side and on their-opposite sides rounded, as arethe tops 31.. As a result of the rounding of tops 31, the edges of the tops slant 5'5 downwardly toward the longitudinal partitionreceiving opening 32. The rounded enect of the backs 3B provides cut-away spaces adjacent the base of the blocks 3|, as shown in Fig.' 2, the outer cut-away portion receiving the triangular hinges I9 and 2| of the carton, and the inner cut-away portion providing space for longitudinal movement of' thepartitions.

Adjacent the lower inner portions of the faces the blocks 3| are undercut as will'be seen at 38 in Fig. 4. At these points a considerable space is provided between the cut-away portions 38 and the'backs of the blocks 3|, the purpose of which will appear hereinafter.

The end blocks 38 are similar to the blocks 3| except that their tops are wider and their faces 39 are undercut, thereby forming a forward projection adjacent the top of the block as indicated in Fig. 1.

Adjacent the opposite end blocks 40 may be provided a projection 4| against which the top of the carton may be pressed when the carton is about to be erected upon the device, whereby the nient 4|. In -this position the front and rear walls of the carton are vertical and the bottom sections are horizontal, the longitudinal partition sections extending inwardly of the barton. The carton is positioned so that the cross partitions point toward the vertical faces 35 of blocks'3l 'I'he second stage in the erection of the carton consists of -pressing the latter downwardly with respect to the setting-up device, asshowninFig. 10. As the'carton is pressed downwardly the free ends yof the cross partitions |4 are rotated by contact with the top of the blocks 3|. The tops of the cross partitions I4 engage the backs 36 of `the' blocks 3| as the carton is pressed downwardly, and thereafter the motion of the cartorrfollows the slant of Athese backs, this motion being downwardly and longitudinally of the device.

When the carton is pressed downwardly as far as it will go over the blocks 3| the faces 35 of the blocks will have rotated the cross partitions into vertical position. Due to the projection of hooks l 25 across the plane of 'the cross partitions the top portions of the latter are distorted out of plane shape as will be seen in Fig. 5. However, the bottom portions of the c ross partitions will have been pressed inwardly sufficient for them tov be positioned above the cross partition-receiving slots 24, this position also being shown in Fig. 5. The end cross partition adjacent blocks 38 must be pressed inwardly beyond the upstanding hook portions 24 which lock the" cross partition against outward movement, this projection ordinarily extending upwardly a greater distance than the corresponding securing means of the other cross partitions.

In order to press the end cross partition beyond the upstanding hook the end blocks 38 are provided with the Yoverhanging face portion 39 which extendsinwardly a greater distance than do the face portions of theremainder of the blocks.

As before stated',` the second stage of the erection of the carton is completed whenthe carton has been pressed downwardly as far as possible over the blocks 3| and the cross have portion of the bottom sections whereby the bottom sections are pressed into substantially inverted V-shape, as will be seen from Fig. ll. When the bottom section is pressed-inwardly in the manner described the hook portions 25 extend below the edges of the cross partitions and the resiliency'of the material from' which the carton is constructed causes the partitions to snap into engagement beneath the .hooks 25 thereby locking the lcross partitions into place .and completing the erection of the carton. The carton may then be removed from the setting-up device and filled witheggs in the usual manner.

In the case of the particular carton shown in the drawings, the top edges of the cross partitions of which .are higher than the hinged portions I9 and 2|, the base 30 of the setting-up device is cut away towards the longitudinal partition-receiving opening 32 to provide downwardly and inwardly slanting surfaces 42. j

My invention, as described specicallyiherein for purposes of explanation and description, is susceptible of modification and all variations coming Within the spirit of my invention are intended to be included in the appended4 claims.

I claim:

1. A device for setting up cellular cartons, comprising a base member', two rows of transversely and longitudinally spaced partition-engaging blocks mounted on said base and extending upwardly therefrom, said blocks having an upright face and a back slanting downwardly from the upper portion of said block toward and adjacent the lower portion of the next adjacent block.

-2.` A device for setting up cellular cartons, comprising a base member, two longitudinal rows'of transversely spaced partition-engaging blocks extending upwardly from said base member and having a longitudinal partition-receiving opening therebetween extending below the lower portion of said blocks, substantially upright faces on one side of said blocks, a'nd back sides on said blocks slanting downwardly from the upper portion thereof adjacent said faces toward and adjacent the lower portion of the faces of the next adjacent blocks, said faces being undercut adjacent their lower inner portions.

3. A device 'for setting up cellular cartons, comprising a base member, two longitudinal rows of transversely spaced partition-engaging blocks extending upwardly from said base member and' having a longitudinal partition-receiving opening therebetween extending below the lower por.

'prising a base member, two longitudinal rows of transversely spaced partition-engaging blocks extending upwardly from said base member and having a longitudinal partition-receiving opening therebetween extending'below the lower portion of said blocks, substantially upright faces on said blocks having undercut portions adjacent.v their lower inner portions, rounded back sides on said blocks slanting from the upper portion thereing the longitudinal partition of a carton into Y of adjacent said faces downwardly toward; and adjacent the lower portion of the faces of the next adjacent blocks, the tops of said blocks being cut away adjacent said longitudinal partition-receiving openings, and the faces oi the blocks adjacent one end of said device being undercut.

5. A device for setting up cellular cartons, comprising a base member, two longitudinal rows of transversely spaced partition-engaging elements extending upwardly from said base member and having a longitudinal partition-receiving openinggtherebetween, and guiding means for directsaid opening.

6. A device for setting up cellular cartons, comprising a base member, two longitudinal rows of transversely spaced partition-engaging blocks extending upwardly from said base member and having a longitudinal partition-receiving opening therebetween, said blocks having upright front sides cut away at their lower inner portion and downwardly sloping back sides cut away at their 10 inner and outer portions.

, MARTIN BURGER. 

